| Weslaco to Oberkirch | 5,558.86 mi (8,946.12 km) |
| Weslaco to Obernburg am Main | 5,556.38 mi (8,942.14 km) |
| Weslaco to Obernkirchen | 5,473.29 mi (8,808.42 km) |
| Weslaco to Oberschleissheim | 5,706.78 mi (9,184.17 km) |
| Weslaco to Oberstdorf | 5,685.59 mi (9,150.07 km) |
| Weslaco to Obertraubling | 5,704.18 mi (9,179.99 km) |
| Weslaco to Obertshausen | 5,536.76 mi (8,910.55 km) |
| Weslaco to Oberursel | 5,522.24 mi (8,887.19 km) |
| Weslaco to Ochsenfurt | 5,598.74 mi (9,010.30 km) |
| Weslaco to Ochsenhausen | 5,649.09 mi (9,091.33 km) |
| Weslaco to Ochtrup | 5,403.59 mi (8,696.24 km) |
| Weslaco to Odenthal | 5,438.62 mi (8,752.62 km) |
| Weslaco to Oelde | 5,451.71 mi (8,773.67 km) |
| Weslaco to Oelsnitz | 5,651.45 mi (9,095.13 km) |
| Weslaco to Oer-Erkenschwick | 5,424.05 mi (8,729.16 km) |
